Harrow.



'MILES 1. NEFF, OF'WAYLND, IOWA.

vIEIAIB'ROW.

Speci'cation of Letters Yatent:

Application filed February 14, 1910. Serial No. 543,887.l

Patented Oct. `25, 1910.

To alaohom it may concern:

Beit known that I, MILES P. NEFF, a citi- Azenof the United States,residing at Waylowi land, county of Henry, and State of Iowa, haveinvented certain new and useful Improvements in Harrows, of which thefolis'a specification.

vention relates toa disk harrow and its object the'production of adevice of this" character which will be strong, dura*- ble, andeconomical in construction, which will be susceptible, of readyadjustment to different positions so as to render the same moreeffectual, and whichv will be lefficient ,in operation.

j .Other objects will appear hereinafter.

VVitlil-thesey objects in view my invention consistslinfa harrowcharacterized as above mentionedand in certain details of construe.-`

.tion and'arran ement of parts all as will dbe hereinafter ullydescribed and particu larlypointed out in the appended claims.

l' My invention lwill be more readily understood by reference to theaccompanying drawings 4forming apart of this specifica tion2 and inwhich,

Figure 1 is ,a top plan view of a disk harrow embodying the preferredform -.of my invention, Fig.` 2 is an enlarged vertical ytransversesection taken on substantially the line 1r-m of Fig.A 1, Fig. 3 is anenlarged lvertical longitudinal section taken on substantially vthe line3/-y of Fig. l, Fig.4 is a sectional detail of one of the journal boxesincluded in the #.device, Fig. 5 is a `detail perspective of a' pbrtionof the structure, Fig. 6 is a slightly 'enlarged top plan.

view of the diskgangs at one side of the machine, and Fig. 7 is a sideelevation of one of the disk scraping devices included in the machine,detached.

Referring now to the drawings, 1 -indis cates the body or'frame of thedevice comprising parallelly disposed frontA and rear bars 2 and 3respectively, each of which is composed preferably of two parallell-yextending members 4, parallelly extending side bars 5 disposedpreferably at slight anglesl tothe barsr2 and 3, and diagonallyextending bars 6; said bars 2,43, 5 and 6 being bolted or rivetedtogether to form a rigid substantially-rectangular frame work. Rigidlysecured to and depending fromeach of the corners of theframe. 1 is apost 7 the upper extremity of which preferably rests between adjacentmembers 4.

Arranged belowthe frame 1 at the front and rear ends thereof aretransversely disposed shafts 8 and 9 respectively, the shaft 8 beingformed of normally coaxially disposed independent shaft parts 8 and 8,

and the shaft 9 being comprised of similarly .arranged shaft parts 9 and9".

Carried upon each `of' said shaft parts, the same be-A lng spaced apartthereon by sleeves 10 and securely clamped thereon between the latter bynuts 11 threaded upon the respective ex-` tremities of the former, is a,gang or plurality of disks 12; each of the shaft parts 8 and 9 carryingpreferably five disks whereas each of the shafts Sand 9 carry four. Thedisks upon the shaft 8 are, for reasons which will be hereinafter setforth, positioned to act between or in nonsalinement wit-h'those carriedby the shaft -9. Certain 75 and 14. The journals of said sleeves arepreferably slightly reduced and the same are provided withcircumferential ribs or beads 15 which engage correspondingly positionedinternal grooves 16 in said boxes, as clearly shown in Fig. 4, wherebythe same are evidently held against longitudinal movement in said boxes.The bearing boxes 13 are positioned below and in vertical alinementrwith the osts 7, the same being provided with per orated lugs orbearing-forming .portions 17 which are engaged by the lower reduced endsof said posts. Cotter pins 18 serve to lock said posts in engagementwith said lugs. The opening 19 through each of said lugs or bearings 17,as clearly shown in Fig. 2, is of smallest diameter at its center thesame diverging outward at either end. lVith such design it will be seenthat free movement or rockingv of the disk-carrying shafts in averticalplane and also in a horizontal plane is permit-ted. y

-Havin their lower ends 20 mounted in lugs 21 ormed upon the bearingboxes 14, are upwardly projecting toothed blocks 22 provided withelongate vertically extending slots 23 in said blocks, and thumb nuts 26threaded upon said bolts, are yinverted U-shaped members 27. With thisconnection of the ends of the members l27 it will parallel side portions31. Fulcrumed to.

portions of views, whereby said members are evidfazitit/y adapted toserve as a' means of main the inner ends of the disk shafts against'vertical movement above any predetermined point, thus making itpossible.. with this provision, to adjust the device so that the'innermost disks will cut deeper than the Voutermost if desired; By theprovision of the interlocking' teeth upon the contacting surfaces of saimembers aud-the blocks 22 a positive, non-slidable connection betweensaid parts is effected.

between and having their rcspective en pivotally connectedto'corresponding bearing blocksl3 `and 14 upon the shafts Sand 9 arebars 28 and 29 respectively. By the provision of the bars 29 operativeconnection betweenalining shaft parts 8', 8, 9 and,9 is efected andwhereby the horizontal movement or adjustment of one each pair causesthe simultaneous operation of the other, as clearly illustrated inFig.6.

Centrally secured to and forwardly projecting from4 the bar 2 is a loop30 having each of .saidV side portions 31 is a lever 32 carrying anordinary spring pressed pawl 33 which is adapted to coperate with arigid co-axially arranged segment rack 34 to lock said lever in anyosition. to which it may be adjusted. The ower ends of the levers 32 areoperatively connected by means of links 35 to ears 22' formed upon theblocks 22, hence indirectly to the boxes 14, whereby the horizontalangular disposition of the respective pairs of shaft parts is governableby said levers. An Qperators seat 36 mounted upon-the framell is ,solocated that the levers 22 are in operative proximity therewith.

Carried by each of 9 and 9, depending arms 37 thereof being rigidlysecured to upwardly projecting lugs.

38 formed integrally with the bearing boxes 13 and 14 of the former, isahorizontally disposed bar 39 extending in close proximity with theupperperipheries of the disks carried by theshaft upon which it is mounted.Slidably mounted upon each of the bars 39 between parallelly disposedears 40 formed thereon, the same being held in position between saidears by cotter pins 41, is a rod 42. Having Atheir upper ends rigidlysecured to said' rod are obliquely depending arms 43 carrying scraperblades 44 lat their lower ends, the latter being Vso positioned as to beadapted to rest against the concave sides of the disk 12 adjacent thelperipheries thereof, as clearly shown in Fig. 3, when the Thev the shaftparts 8', 8,

rod 42 is properlyshifted or operated. A coil spring45 interposedbetween one of the ofears 40 and a lu 4T provided upon 'each of the rods42 is a apted to normally hold said scraper blades in inoperativeposition, that is out of contact with said disks. Bigiiddy secured toeach ofthe bars 39 is upwardly projecting ear 48 towhich is pivoted afoot lever 49. .The lower-end of each of the levers 49 is connected bymeans of the link 50 to a lug 51 upwardly projecting from the rod 42mounted adjacent thereto. By this provision it will be seen that aneiiicient foot-operable means is provided for effecting the operativepositioning of the scraper blades.

Havin l`'ts forward extremities loosely connecte to the rear bearingboxes 13 is a strap or connecting bar 52 to which is connected, bymeansA of .bars 52T, a toothed harrow 53, the latter being of ordinarydesign,

4comprising toothed bars 54 connected by connecting bars 54 to a mainbar 54. A double whiletree 55 is preferably employed, it beingconnectedthrough its clevis 56 centrally, to a dra-ft member 57 the extremitiesof which loosely engage perforated lugs formed upon the forward bearingboxes 13.

A link-58 extends from the forward end of the loop 30,to an eye 59provided at the forward endof the member 57.

With the provision of a device of a construction as set forth, whendrawn over the ground with the gangs in operative position, the groundwill be evenly and uniformly harrowed and will be devoid of ridges andfnrrows such as are formed therein when broken by disk harrows of theordinary design. This even breaking of the ground, without the formationof furrows or ridges therein is due mainly to the non-aliningarrangement of the disks of the front and rear gangs.- With theconstruction as set forth the gangslof-disks upon the opposite 'sides ofthe machine will be susceptible to independent adjustment to anyhorizontal angular disposition or any vertical angular dispositiondesired. Further, with this construction it will be observed that thedraft force is applied to the bearing boxes carrying the gangs of disksand not to the'supporting frame, thus the drawing force is applieddirectly to the operating parts of the device relieving the frame fromany undue wear or strain such as it is subjected to in similar machinesnow generally in use where the force is applied 'to the frame andcommunicated therethrough to the operating' parts.

While I have shown what I deem to be the preferable form of my device ldo not wish to be limited thereto as there might be various changes madein the details of construction and arrangement of parts describedwithout departing from the spirit of the invention comprehended withinthe scope of the appended claims.

lHaving described my invention what I claim as new and desire to secureby Letters Patent is:

l. In ,a harrow, the combination of a frame, two gangs of disks arrangedunder each side of said frame one in front of the other, each of saidgangs of disks being mounted to rock in vertical planes, substantiallyU-shaped members adjustably secured to the inner ends of each of saidgangs on the same side and arranged to loosely contact with the bottomof said frame, and means of draft for said harrow, substantially asdescribed.

Q. In a harrow, the combination of a substantially rectangular frame,two gangs of disks arranged under each side of said frame one in frontof the other, the disks of the respective gangs at the same side beingin nonalinement, and the number of disks in the forward gang on one sidebeing greater thank the number in the corresponding rearward gang andthe number of disks in the forward gang on the other side being lessthan the number in the corresponding rearward gang,

said gangs being pivotally mounted uponv depending posts at each cornerof said frames, said connection being such as to per# mit of the rockingof said gangs in vertical and horizontal planes, means forsimultaneously swinging the gangs of each pair on their pivotal pointsin a horizontal plane in the same direction independently of the otherpair of gangs and for holding them in .their positions of adjustment,'substantially U-shaped members adjustably secured to the inner ends ofeach of said gangs on the same side and arranged to loosely contact withthe bottom I of said frame, and draftelements connected directly withsaid gangs at their points of pivotal connection with said frame,substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses. Y

MILES P, NEFF.

Vitnesses E. J. EICHER, C. C. MENYER.

aoV

